the.com/aversion

means A strong feeling of dislike or reluctance that makes you want to avoid something entirely.

from From Latin avertere — ab- 'away' plus vertere 'to turn' — literally 'a turning away.' The same root that gives us 'versus' and 'invert' is doing the same physical gesture here: imagine recoiling, pivoting your whole body from something unpleasant. English picked it up in the 1500s–1600s still carrying that sense of turning the face away before it settled into the purely emotional meaning we use now.